Thoughts about how to play this hand?
Poker Stars, $2.68 Buy-in (60/120 blinds, 15 ante) No Limit Hold'em Tournament, 7 Players
Poker Tools Powered By Holdem Manager - The Ultimate Poker Software Suite.
SB: 1,175 (9.8 bb)
BB: 265 (2.2 bb)
MP1: 4,522 (37.7 bb)
MP2: 1,213 (10.1 bb)
Hero (MP3): 2,016 (16.8 bb)
CO: 1,150 (9.6 bb)
BTN: 3,159 (26.3 bb)
Preflop: Hero is MP3 with A♦: T♠:
MP1 folds, MP2 calls 120, Hero calls 120, CO folds, BTN calls 120, SB folds, BB raises to 250 and is all-in, MP2 calls 130, Hero raises to 2,001 and is all-in, BTN calls 1,881, MP2 folds
Flop: (4,667) K♠: 9♠: 2♣: (3 players, 2 are all-in)
Turn: (4,667) 5♥: (3 players, 2 are all-in)
River: (4,667) 2♦: (3 players, 2 are all-in)
Results:
Spoiler
4,667 pot
Final Board: K♠: 9♠: 2♣: 5♥: 2♦:
BB showed 4♣: 4♦: and lost (-265 net)
Hero showed A♦: T♠: and lost (-2,016 net)
BTN showed T♦: T♥: and won 4,667 (2,651 net)
I'm really not happy with my limp here, and I think a raise-fold to MP2's original limp would have been a better play. I think shoving at this stage is marginal, although when I look at ICMizer (based on what I put MP2's limping range at, and reasonable overcall ranges) it seems it would be an ok play.

So assuming I don't shove, post-flop becomes my concern... if I open it for say 350, and get called by a later position, I think I trap myself a bit stack-wise for post-flop play if I miss the board completely. (i.e. forced to play fit or fold).
Is it too nitty to fold the ATo then pre-flop... ? I don't know why, but this hand is hurting my brain...